A pair o' Docs...

And the Man of Steel.

"Steel" on both Doc Ock's arms and mask AND on Doctor Doom's armour.
Further, light orange on Doc Ock's boots and gloves and a mix of dark/light orange on his belt. More yellow on Doctor Doom's cape clasps and brown on his belt and buckle and on the cape chain which will be gold eventually. I think that the cape clasps are meant to be gold, but I like the classic yellow.

Speaking of yellow, more of it on Supe's belt, some red and yellow fixing on the emblem and yellow on the back emblem in an attempt to tone down the black outline.